Home / 260,680,501.20-391,020,751.80-169,981,237.20

Finding the Fourth Proportional to 260,680,501.20, 391,020,751.80 and 169,981,237.20

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Solution

The fourth proportional to 260,680,501.20, 391,020,751.80 and 169,981,237.20 is: 254,971,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,680,501.20 : 391,020,751.80 = 169,981,237.20 : x
  2. Step 2: Convert to fraction form
    260,680,501.20/391,020,751.80 = 169,981,237.20/x
  3. Step 3: Cross multiply
    260,680,501.20x = 391,020,751.80 × 169,981,237.20
  4. Step 4: Simplify right side
    260,680,501.20x = 66,466,191,161,838,128
  5. Step 5: Solve for x
    x = 66,466,191,161,838,128/260,680,501.20
  6. Step 6: Final answer
    x = 254,971,855.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.